The Rearden FHD Flash Hider is designed for .375 caliber applications and features a 1/2-28 thread pitch. This model is distinguished by its nitride finish, which enhances durability and corrosion resistance. The updated design incorporates larger wrench flats on the rear, facilitating easier installation.Key FeaturesCaliber/Gauge: Specifically designed for .375 caliber firearms.Thread Pitch: Utilizes a 1/2-28 thread pitch for compatibility with various muzzle devices.Finish: Nitride finish for improved durability and corrosion resistance.